Home / 198,869.89-274,446.62-112,832.48

Finding the Fourth Proportional to 198,869.89, 274,446.62 and 112,832.48

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Solution

The fourth proportional to 198,869.89, 274,446.62 and 112,832.48 is: 155,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,869.89 : 274,446.62 = 112,832.48 : x
  2. Step 2: Convert to fraction form
    198,869.89/274,446.62 = 112,832.48/x
  3. Step 3: Cross multiply
    198,869.89x = 274,446.62 × 112,832.48
  4. Step 4: Simplify right side
    198,869.89x = 30,966,492,198.06
  5. Step 5: Solve for x
    x = 30,966,492,198.06/198,869.89
  6. Step 6: Final answer
    x = 155,712.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.